Hello,
On your screenshot, I can see related products – https://docs.woocommerce.com/document/related-products-up-sells-and-cross-sells/ Settings for this block you can find in Theme Options > WooCommerce > Single Product builder > Related products
To add a new block of products, for example, Recently viewed, create a static block, add Products element > select the desired Products type, then go to Theme Options > WooCommerce > Single Product builder > add custom HTML element into the content of page and select your static block
Regards